This Beta release incorporates all bugfixes and changes made in
previous MySQL Cluster NDB 6.1, 6.2, 6.3, and 6.4 releases, as
well as all bugfixes and feature changes which were added in
mainline MySQL 5.1 through MySQL 5.1.31 (see
Changes in MySQL 5.1.31 (2009-01-19)).

Note

This Beta release, as any other pre-production release, should
not be installed on production level
systems or systems with critical data. Please refer to our bug
database at http://bugs.mysql.com/ for more
details about the individual bugs fixed in this version.

Bugs Fixed

Connections using IPv6 were not handled correctly by
mysqld.
(Bug #42413)

References: See also: Bug #42412, Bug #38247.

When a cluster backup failed with Error 1304 (Node
node_id1: Backup request from
node_id2 failed to start), no clear
reason for the failure was provided.

As part of this fix, MySQL Cluster now retries backups in the
event of sequence errors.
(Bug #42354)

References: See also: Bug #22698.

Issuing SHOW ENGINE
NDBCLUSTER STATUS on an SQL node before the management
server had connected to the cluster caused
mysqld to crash.
(Bug #42264)